Linear motor and linear module

Abstract

The invention relates to the technical field of linear motors, in particular to a linear motor and a linear module, the linear motor comprises a moving assembly, a fixed assembly, a power supply assembly and a power taking assembly, the moving assembly is slidably arranged on the fixed assembly, and the power supply assembly is arranged on the inner side of the fixed assembly; the power taking assembly is arranged on the side wall of the moving assembly and corresponds to the power supply assembly in position, the moving assembly moves on the fixed assembly through coupling matching of the power taking assembly and the power supply assembly, a control assembly is further arranged in the fixed assembly, and the control assembly is electrically connected with the power supply assembly. The ultra-long linear motor can effectively reduce the defect that an existing ultra-long linear motor occupies a large installation space.

Description

Technical Field

[0001] The present application relates to the technical field of linear motors, and in particular to a linear motor and a linear module. Background Art

[0002] A linear motor is a transmission device that converts electrical energy directly into linear motion mechanical energy without any intermediate conversion mechanism. It can be seen as a rotating motor cut radially and unfolded into a plane. Linear motors are also called linear motors, linear motors, linear motors, and push rod motors. They have the advantage of high transmission efficiency and have been widely used in industrial fields such as rail transportation, industrial control, and CNC machine tools.

[0003] With the increase in the application scenarios of linear motors in various fields, the use of high-speed and long-stroke conditions has increased, and the demand for ultra-long linear motors has increased day by day. However, ultra-long motors are difficult to transport, and engineering generally relies on multiple short motors for splicing. At present, when using a linear motor to move the secondary actuator unit on it, a tank chain structure is often needed to guide the cable of the secondary actuator unit to reduce the physical damage such as friction, stretching, and extrusion to the cable of the secondary actuator unit when the linear motor moves.

[0004] However, due to the long cable length of the ultra-long linear motor using the tank chain, the tank chain is relatively large and occupies a large amount of installation space, causing the entire ultra-long linear motor transmission system to be unable to meet the needs of different usage sites. Summary of the invention

[0005] In order to effectively reduce the defect of existing super-long linear motors that occupy a large installation space, the present application provides a linear motor and a linear module.

[0006] In the first aspect, the present application provides a linear motor, including a moving component, a fixed component, a power supply component and a power extraction component, wherein the moving component is slidably arranged on the fixed component, the power supply component is arranged on the inner side of the fixed component, the power extraction component is arranged on the side wall of the moving component and corresponds to the position of the power supply component, and the moving component realizes movement on the fixed component by coupling the power extraction component with the power supply component, and a control component is also arranged in the fixed component, and the control component is electrically connected to the power supply component.

[0007] By adopting the above technical solution, the control component can control the power supply component inside the fixed component to start, so that the power supply component on the mobile component can slide stably along the length direction of the fixed component under the action of the power supply component, thereby realizing the flexible movement of the mobile component on the fixed component; In addition, compared with existing linear motors, the technical solution of the present application can effectively reduce the need to subsequently set up additional tank chains on the outside of the moving component and the fixed component to provide additional protection for the power supply cable by setting up a power supply component on the inner side of the fixed component, thereby better saving the overall space occupancy rate of the linear motor and achieving the purpose of facilitating the arrangement of ultra-long linear motors in scenarios of different sizes.

[0008] Optionally, the fixed component includes a mounting seat and a winding, the movable component is slidably matched with the mounting seat through a guide, and the winding is arranged on the mounting seat and magnetically matched with the movable component through an air gap.

[0009] By adopting the above technical solution, the mounting seat can limit the sliding of the moving component thereon through the guide member, and the winding is energized and generates a magnetic field through the cooperation of the power supply component and the power taking component, so that the magnetic field generated by the winding interacts with the permanent magnet in the linear motor to generate thrust for linear motion.

[0010] Optionally, the moving component includes a magnetic track and a moving seat, and the magnetic track is arranged on the side wall of the moving seat close to the winding and cooperates with the air gap of the winding, so that the moving seat moves on the mounting seat through the magnetic force of the winding and the magnetic track.

[0011] By adopting the above technical solution, the magnetic track is composed of permanent magnets, which can interact with the magnetic field generated by the winding to generate a driving force, thereby realizing the linear motion of the moving seat on the guide member of the mounting seat.

[0012] Optionally, the fixing assembly further includes a baffle, the winding is arranged on the inner wall of the baffle, and the movable seat is arranged on the outer side of the baffle and magnetically cooperates with the winding on the inner wall of the baffle through a magnetic track.

[0013] By adopting the above technical solution, the baffle can be used to support and install the winding, so that the winding can be more evenly arranged on the inner side of the fixed component, so that the magnetic track on the moving seat can more stably interact with the winding magnetically, thereby achieving the purpose of improving the smooth operation of the moving seat.

[0014] Optionally, the baffle includes a first connecting portion and a second connecting portion, one side of the first connecting portion is connected to the mounting seat, and the second connecting portion is arranged on the other side of the first connecting portion and extends to both sides of the mounting seat.

[0015] By adopting the above technical solution, the mounting seat and the baffle are stably connected, and the provision of the second connecting portion enables the winding on the baffle to be more evenly arranged on the mounting seat, thereby facilitating subsequent stable magnetic cooperation with the magnetic track on the movable seat.

[0016] Optionally, the movable seat includes a third connecting part, a fourth connecting part and a fifth connecting part, the third connecting part is arranged above the baffle, both ends of the third connecting part extend to both sides of the baffle and are respectively connected to the fourth connecting part and the fifth connecting part, and the fourth connecting part and the fifth connecting part both extend to the inner side of the baffle and slideably cooperate with the guide part on the mounting seat.

[0017] Optionally, the power supply assembly includes a first power supply part, which is arranged on the side wall of the baffle close to the fourth connecting part, and the power extraction assembly includes a first power extraction part, which is arranged on the side wall of the fourth connecting part and electrically cooperates with the first power supply part; And / or, the power supply component includes a second power supply part, which is arranged on the side of the baffle close to the fifth connecting part, the power supply component includes a second power supply part, which is arranged on the side wall of the fifth connecting part and electrically cooperates with the second power supply part, and the control component includes a controller, and the first power supply part and the second power supply part are both electrically connected to the controller.

[0018] By adopting the above technical solution, the first power supply part and the second power supply part can respectively drive the fourth connection part and the fifth connection part through the first power taking part and the second power taking part, so that the movable seat formed by the third connection part, the fourth connection part and the fifth connection part can slide effectively along the guide member on the mounting seat as a whole.

[0019] Optionally, a first shielding layer for isolating a magnetic field is provided on a side of the first power supply unit away from the first power extraction unit; And / or, a second shielding layer for isolating a magnetic field is provided on a side of the second power supply portion away from the second power extraction portion.

[0020] By adopting the above technical solution, the influence of the magnetic field on the first power supply part and the second power supply part is effectively reduced, and the electric field strength and stability of the first power supply part and the second power supply part when working are guaranteed, so that the movable seat can slide more smoothly.

[0021] On the second aspect, the present application also provides a linear module, which is composed of multiple linear motors spliced ​​in sequence, and also includes a communication module. The number of the communication modules corresponds to the number of mobile components, and the communication modules are correspondingly arranged on the mobile components; the control component is wirelessly connected to the communication module.

[0022] By adopting the above technical solution, the mobile components can be controlled individually and accurately through communication modules at different positions, thereby improving the control accuracy and real-time performance of the mobile components.

[0023] Optionally, the communication module is a TCP / RS232 conversion module.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The power supply component on the inner side of the fixed component can be controlled to start through the control component, so that the power supply component on the mobile component can stably slide along the length direction of the fixed component under the action of the power supply component, thereby realizing the flexible movement of the mobile component on the fixed component; in addition, compared with the existing linear motor, the technical solution of the present application can effectively reduce the need to set up additional tank chains on the outer sides of the mobile component and the fixed component to provide additional protection for the power supply cable by setting up the power supply component on the inner side of the fixed component, thereby better saving the overall space occupancy rate of the linear motor and achieving the purpose of facilitating the arrangement of ultra-long linear motors in scenes of different sizes; 2. The mounting seat is provided to limit the sliding of the moving component thereon through the guide member, and the winding is energized and generates a magnetic field through the cooperation of the power supply component and the power extraction component, so that the magnetic field generated by the winding interacts with the permanent magnet in the linear motor to generate a thrust for linear motion; 3. By providing the first power supply part and the second power supply part, the fourth connection part and the fifth connection part can be driven by the first power taking part and the second power taking part respectively, so that the entire movable seat formed by the third connection part, the fourth connection part and the fifth connection part can slide effectively along the guide member on the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the structure of a linear motor according to an embodiment of the present application; Figure 2 is a front view of a linear motor according to an embodiment of the present application; Figure 3 is a side view of a linear motor according to an embodiment of the present application; Figure 4 yes Figure 1 A magnified view of part A; Figure 5 This is a schematic diagram of the structure of the first power supply unit of the second embodiment of the present application; Figure 6 yes Figure 5 A magnified view of part B; Figure 7 It is a cross-sectional view of the fastening member of the second embodiment of the present application.

[0026] Description of reference numerals: 1. moving assembly; 11. magnetic track; 12. moving seat; 121. third connection portion; 122. fourth connection portion; 123. fifth connection portion; 2. fixing assembly; 21. mounting seat; 22. winding; 23. guide member; 24. baffle; 241. first connection portion; 242. second connection portion; 3. power supply assembly; 31. first power supply portion; 311. mounting plate; 311a. protrusion; 311 b, matching block; 311c, tightening block; 312, cable; 313, fastening piece; 313a, second slot; 313b, third slot; 313c, first buckle; 313d, second buckle; 313e, first buffer pad; 313f, second buffer pad; 313g, accommodating groove; 313h, positioning block; 32, second power supply unit; 4, power supply assembly; 41, first power supply unit; 42, second power supply unit. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-7 This application is described in further detail.

[0028] The present application discloses a linear motor and a linear module.

[0029] Embodiment 1: In a first aspect, the present application provides a linear motor, referring to Figure 1-2 The linear motor includes a moving component 1, a fixed component 2, a power supply component 3 and a power supply component 4. The fixed component 2 is installed on the support plane, the moving component 1 and the power supply component 3 are both arranged on the fixed component 2, and the power supply component 4 is arranged on the side wall of the moving component 1 and coupled with the power supply component 3 arranged on the inner wall of the fixed component 2. At the same time, a control component is also arranged on the inner wall of the fixed component 2, and the control component is electrically connected to the power supply component 3.

[0030] When in use, the power supply component 3 is started through the control component, so that the mobile component 1 can electrically cooperate with the power supply component 3 through the power supply component 4, so that the mobile component 1 can slide on the fixed component 2, so as to facilitate the stable guidance of the objects placed thereon through the mobile component 1.

[0031] Reference Figure 1-2 In this embodiment, the fixed component 2 includes a mounting seat 21, a winding 22 and a baffle 24. The mounting seat 21 is arranged on a supporting plane, the baffle 24 is arranged on the upper surface of the mounting seat 21 and extends along the length direction of the mounting seat 21, and the winding 22 is evenly arranged in multiple groups along the length direction of the baffle 24 and is magnetically matched with the moving component 1 through an air gap.

[0032] Specifically, in this embodiment, the moving assembly 1 includes a magnetic track 11 and a moving seat 12. The moving seat 12 is entirely located at the periphery of the baffle 24 and both ends thereof are slidably matched with the guide member 23 on the upper surface of the mounting seat 21, while the magnetic track 11 is mounted on the inner side wall of the moving seat 12 and is magnetically matched with the winding 22.

[0033] Reference Figure 1-2 In this embodiment, the baffle 24 includes a first connection portion 241 and a second connection portion 242. One side of the first connection portion 241 is connected to the upper surface of the mounting seat 21, and the second connection portion 242 is arranged on the top side of the first connection portion 241, and the second connection portion 242 extends toward both sides of the length direction of the mounting seat 21. At the same time, the winding 22 is evenly arranged with multiple side walls on both sides of the first connection portion 241.

[0034] Specifically, the movable seat 12 includes a third connecting portion 121, a fourth connecting portion 122 and a fifth connecting portion 123. The third connecting portion 121 is entirely located above the baffle 24 and its two sides extend to the two sides of the length direction of the baffle 24, while the fourth connecting portion 122 and the fifth connecting portion 123 are respectively connected to the two sides of the third connecting portion 121, and the side walls of the fourth connecting portion 122 and the fifth connecting portion 123 away from the third connecting portion 121 extend to the inner side of the baffle 24 and slide with the guide member 23 on the mounting seat 21.

[0035] Reference Figure 1-3 In this embodiment, the guide member 23 includes a first guide rail and a second guide rail. The first guide rail and the second guide rail are respectively arranged on both sides of the upper surface of the mounting seat 21, and the first guide rail and the second guide rail are both extended along the length direction of the mounting seat 21. At the same time, the fourth connecting portion 122 and the fifth connecting portion 123 are respectively slidably abutted against the first guide rail and the second guide rail.

[0036] In addition, in this embodiment, the power supply assembly 3 includes a first power supply part 31 and a second power supply part 32. Among them, the first power supply part 31 is arranged at the side wall of the baffle 24 close to the fourth connection part 122, and the second power supply part 32 is arranged at the side wall of the baffle 24 close to the fifth connection part 123. At the same time, there are multiple first power supply parts 31 and second power supply parts 32 linearly arranged along the movement direction of the movable seat 12, and the multiple first power supply parts 31 are electrically connected to each other, and the multiple second power supply parts 32 are electrically connected to each other.

[0037] In addition, in the present embodiment, the power taking component 4 includes a first power taking part 41 and a second power taking part 42. The first power taking part 41 is arranged on the side wall of the fourth connecting part 122 and is electrically connected to the first power supply part 31, while the second power taking part 42 is arranged on the side wall of the fifth connecting part 123 and is electrically connected to the second power supply part 32. At the same time, in the present embodiment, the control component includes a controller, which is arranged inside the mounting seat 21 and is electrically connected to the first power supply part 31 and the second power supply part 32. Specifically, the first power taking part 41 and the second power taking part 42 are coupled to move along the moving path of the moving seat 12, and power is wirelessly supplied through the magnetic flux formed by the first power supply part 31 and the second power supply part 32, and the first power taking part 41 and the second power taking part 42 are both electrically connected to the secondary actuator unit arranged above the moving seat 12.

[0038] Reference Figure 1-3 In this embodiment, both the first power supply part 31 and the second power supply part 32 include a mounting plate 311 and a cable 312. Among them, a first opening and a second opening are respectively opened at the positions of the baffle 24 corresponding to the fourth part and the fifth part, and the first power supply part 41 and the second power supply part 42 are respectively installed in the first opening and the second opening, and the mounting plates 311 of the first power supply part 31 and the second power supply part 32 pass through the first opening and the second opening respectively. At the same time, the mounting plates 311 of the first power supply part 31 and the second power supply part 32 are both provided with a cable 312 electrically connected to the controller. In addition, a first shielding layer for isolating a magnetic field is provided on a side of the mounting plate 311 of the first power supply part 31 away from the first power supply part 41, and a second shielding layer for isolating a magnetic field is provided on a side of the mounting plate 311 of the second power supply part 32 away from the second power supply part 42.

[0039] Specifically, a plurality of protrusions 311 a are evenly arranged on the side wall of the mounting plate 311 , wherein each protrusion 311 a is penetrated with a threading hole for the cable 312 to pass through, and a fastening member 313 for limiting the cable 312 is arranged on the side wall of the protrusion 311 a .

[0040] Reference Figure 1 , 3 4. In this embodiment, the fastener 313 includes a second slot 313a and a third slot 313b. The second slot 313a and the third slot 313b are located on opposite sides of the protrusion 311a, respectively. The cable 312 can pass through the second slot 313a and the third slot 313b and can be clamped and positioned by the second slot 313a and the third slot 313b. In this embodiment, the second slot 313a and the third slot 313b are both arc-shaped and match the cross-sectional shape of the cable 312.

[0041] Specifically, during installation, first, one end of the cable 312 is electrically connected to the external power supply, and then the other end of the cable 312 is passed through the threading hole of the first protrusion 311a and extended to the second groove 313a of the next protrusion 311a, and then extended to the threading hole of the next protrusion 311a, and so on, so that the cable 312 repeatedly passes through the threading hole and the second groove 313a until it extends to the last protrusion 311a, and after bypassing the back side of the last protrusion 311a, it passes through the third groove 313b on the other side of the protrusion 311a and returns. When returning, the cable 312 is passed through the threading hole and the third groove 313b in turn and extended in the same way until it returns to the threading hole of the first protrusion 311a and then electrically connected to the controller inside the mounting base 21.

[0042] On the other hand, the first embodiment of the present application further provides a linear module, including the above-mentioned plurality of linear motors spliced ​​in sequence front and back, and also including a communication module, the number of the communication modules corresponds to the number of the moving components 1, the communication modules are arranged one by one on the moving seat 12, and the controller is connected to the communication module by wireless communication. In this embodiment, the communication module is a TCP / RS232 conversion module.

[0043] Implementation principle: During operation, the winding 22 after being energized can generate a change in the magnetic field and act on the magnetic rail 11, so that the movable seat 12 can slide along the guide rail on the mounting seat 21; in addition, in the process of the movable seat 12 driving the secondary actuator unit thereon to move, the communication module can be used to start the controller, so that the controller can energize the cable 312 and supply power to multiple protrusions 311a, thereby energizing the first power supply part 41 and the second power supply part 42 through coupling, and transmitting power to the secondary actuator unit on the movable seat 12, thereby achieving the purpose of reducing the overall volume of the linear motor.

[0044] Embodiment 2: The difference between this embodiment and the first embodiment is that, referring to Figure 5-7In this embodiment, the fastening member 313 further includes a first buckle 313c and a second buckle 313d. The first buckle 313c and the second buckle 313d are hinged inside the second groove 313a and the third groove 313b, respectively. Meanwhile, a first hinge is provided at the hinged joint between the first buckle 313c, the second buckle 313d and the side wall of the protrusion 311a, and a first elastic member is provided at the hinge, wherein the two ends of the first elastic member are respectively against the two inner walls of the first hinge. In addition, the inner side walls of the first buckle 313c and the second buckle 313d are both provided with a first buffer pad 313e, and the inner side walls of the second groove 313a and the third groove 313b are both provided with a second buffer pad 313f, and the middle parts of the inner side walls of the first buckle 313c, the second buckle 313d, the second groove 313a, and the third groove 313b are all provided with an accommodating groove 313g, and the first buffer pad 313e and the second buffer pad 313f are respectively embedded in the accommodating groove 313g at the corresponding positions. In addition, in this embodiment, the first buckle 313c and the second buckle 313d can be made of plastic material, and the first buffer pad 313e and the second buffer pad 313f can be made of rubber material.

[0045] Specifically, a matching block 311b is extended on both the upper and lower sides of the protrusion 311a, and a positioning groove is provided on the side wall of the matching block 311b. At the same time, a positioning block 313h with a triangular cross-section is integrally formed at one end of the matching block 311b near the corresponding position of the first buckle 313c and the second buckle 313d, and the shape of the positioning groove is adapted to the positioning block 313h. In addition, a pressing block 311c is hinged on the side of the matching block 311b away from the protrusion 311a, and a second hinge is provided at the hinge between the pressing block 311c and the matching block 311b, and a second elastic member is provided at the second hinge, and the two ends of the second elastic member are respectively against the two inner walls of the second hinge. In this embodiment, the first elastic member and the second elastic member can be selected as torsion springs.

[0046] Implementation principle: After the cable 312 is inserted into the second slot body 313a and the third slot body 313b, the cable 312 is first embedded in the receiving groove 313g of the second buffer pad 313f, and then the first buckle 313c and the second buckle 313d at the corresponding position are flipped and buckled on the outside of the cable 312, so that the positioning block 313h is snapped into the positioning groove. At this time, shake the cable 312 so that the cable 312 enters the receiving groove 313g of the first buffer pad 313e, thereby completing the efficient installation of the cable 312.

[0047] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A linear motor, characterized in that: The invention comprises a moving component (1), a fixed component (2), a power supply component (3) and a power extraction component (4), wherein the moving component (1) is slidably arranged on the fixed component (2), the power supply component (3) is arranged on the inner side of the fixed component (2), the power extraction component (4) is arranged on the side wall of the moving component (1) and corresponds to the position of the power supply component (3), the moving component (1) is moved on the fixed component (2) by coupling the power extraction component (4) with the power supply component (3), and a control component is also arranged in the fixed component (2), and the control component is electrically connected to the power supply component (3).

2. A linear motor according to claim 1, characterized in that: The fixed component (2) comprises a mounting seat (21) and a winding (22); the movable component (1) is slidably matched with the mounting seat (21) via a guide (23); the winding (22) is arranged on the mounting seat (21) and is magnetically matched with the movable component (1) via an air gap.

3. A linear motor according to claim 2, characterized in that: The moving assembly (1) comprises a magnetic track (11) and a moving seat (12); the magnetic track (11) is arranged on a side wall of the moving seat (12) close to the winding (22) and is air-gap matched with the winding (22), so that the moving seat (12) moves on the mounting seat (21) through the magnetic force of the winding (22) and the magnetic track (11).

4. A linear motor according to claim 3, characterized in that: The fixed component (2) further comprises a baffle (24), the winding (22) is arranged on the inner wall of the baffle (24), and the movable seat (12) is arranged on the outer side of the baffle (24) and is magnetically matched with the winding (22) on the inner wall of the baffle (24) through the magnetic track (11).

5. A linear motor according to claim 4, characterized in that: The baffle (24) comprises a first connecting portion (241) and a second connecting portion (242), wherein one side of the first connecting portion (241) is connected to the mounting seat (21), and the second connecting portion (242) is arranged on the other side of the first connecting portion (241) and extends to both sides of the mounting seat (21).

6. A linear motor according to claim 4, characterized in that: The movable seat (12) comprises a third connecting portion (121), a fourth connecting portion (122) and a fifth connecting portion (123); the third connecting portion (121) is arranged above the baffle (24); two ends of the third connecting portion (121) extend to two sides of the baffle (24) and are respectively connected to the fourth connecting portion (122) and the fifth connecting portion (123); the fourth connecting portion (122) and the fifth connecting portion (123) both extend to the inner side of the baffle (24) and are slidably matched with the guide member (23) on the mounting seat (21).

7. A linear motor according to claim 6, characterized in that: The power supply component (3) comprises a first power supply portion (31), the first power supply portion (31) being arranged on a side wall of the baffle (24) close to the fourth connection portion (122), and the power extraction component (4) comprises a first power extraction portion (41), the first power extraction portion (41) being arranged on a side wall of the fourth connection portion (122) and electrically cooperating with the first power supply portion (31); And / or, the power supply component (3) comprises a second power supply part (32), the second power supply part (32) is arranged on a side of the baffle (24) close to the fifth connection part (123), the power extraction component (4) comprises a second power extraction part (42), the second power extraction part (42) is arranged on a side wall of the fifth connection part (123) and electrically cooperates with the second power supply part (32), and the control component comprises a controller, and the first power supply part (31) and the second power supply part (32) are both electrically connected to the controller.

8. A linear motor according to claim 7, characterized in that: A first shielding layer for isolating a magnetic field is provided on a side of the first power supply portion (31) away from the first power extraction portion (41); And / or, a second shielding layer for isolating a magnetic field is provided on a side of the second power supply portion (32) away from the second power extraction portion (42).

9. A linear module, using a linear motor according to any one of claims 1 to 8, characterized in that: It is composed of a plurality of linear motors spliced ​​in sequence, and further comprises a communication module, the number of the communication modules corresponds to the number of the moving components (1), and the communication modules are correspondingly arranged on the moving components (1); the control component is connected to the communication module through wireless communication.

10. A linear module according to claim 9, characterized in that: The communication module is a TCP / RS232 conversion module.

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